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7 free tools for US freelancers and independent workers. Every tool shows its formula and cites the IRS or SSA source.

Calculators

Estimate what you owe or take home, broken down line by line.

Self Employment Tax Calculator

Work out your Social Security and Medicare tax from net profit, with the deductible half and a full breakdown.

Figure out what to send the IRS each quarter — income tax plus self employment tax, with due dates and safe harbor tips.

See what you actually keep after self employment tax, income tax, and business expenses.

Find the hourly rate you need to charge to reach your take-home goal after taxes and unpaid time off.

Comparisons

Weigh two options side by side to see which leaves you better off.

Compare your actual take-home as a 1099 contractor versus a W2 employee at the same gross pay.

Deductions

See how much a write-off lowers your taxable income and your bill.

See how much your health insurance premiums reduce your taxable income and your actual tax bill.

See how much you can deduct for a business vehicle under Section 179 and the cash tax savings at your marginal rate.